Home Radios Accessory Amateur Technology About
 
Public Two Way Radio Frequency
 
KeyWords:
GMRS , MURS , FRS , Public Frequency
 

Public interphones are commonly known as civil interphones. This refers to walkie talkies that can only work on ungrouped frequencies designated by the government radio regulatory authority for public use. In essence, it belongs to a personal business communication category, which is a short-range radio communication service for personal household or small group. The use of public walkie talkies requires no approval, no frequency occupancy fee, and no telephone charges. Anyone can choose to use the walkie talkie. However, such public interphones have clear regulations on frequency, power and technical indicators.

...

Although the standards of various countries are different, one thing is the same, that is, the power does not exceed 0.5W, but the frequency is quite different. Each country or region has its own frequency and channel number specified or confirmed. The number of channels opened in China is 20, with a frequency range of 409.750~409.9875MHZ; The United States has 14 frequency points, which are divided into two groups: 462MHz and 467MHz. Each group has 7 frequency points. In Taiwan, there are also 14 frequency points, which are 446.00625MHz - 446. 09375MHz. In Thailand, there are 80 open frequency points, from 245.000MHz to 245.7375MHz. It is understood that Japan and South Korea use the public frequency specified by the United States.

...

In addition, as public walkie talkies, the technical specifications of various countries stipulate that the front panel of walkie talkies cannot be set with programming operation functions, so as to prevent users from randomly expanding the frequency range and modifying the working parameters. According to the regulations, public walkie talkies can only display the number of channels, not their working frequency. At the same time, it is also stipulated that public walkie talkies can use sub audio technology (CTCSS) below 300HZ, commonly known as anti-interference code or private line, to prevent interference from walkie talkies of the same frequency.

Standard Frequency of Chinese Public Interphone
Channel CH-01 CH-02 CH-03 CH-04 CH-05 CH-06 CH-07
Frequency 409.7500 409.7625 409.7750 409.7875 409.8000 409.8125 409.8250
Channel CH-08 CH-09 CH-10 CH-11 CH-12 CH-13 CH-14
Frequency 409.8375 409.8500 409.8625 409.8750 409.8875 409.9000 409.9125
Channel CH-15 CH-16 CH-17 CH-18 CH-19 CH-20  
Frequency 409.9250 409.9375 409.9500 409.9625 409.9750 409.9875  

Standard Frequency of American Public Interphone
Channel CH-01 CH-02 CH-03 CH-04 CH-05 CH-06 CH-07
Frequency 462.5625 462.5875 462.6125 462.6375 462.6625 462.6875 462.7125
Channel CH-08 CH-09 CH-10 CH-11 CH-12 CH-13 CH-14
Frequency 467.5625 467.5875 467.6125 467.6375 467.6625 467.6875 467.7125

European Standard Frequency of Public Interphone
Channel CH-01 CH-02 CH-03 CH-04 CH-05 CH-06 CH-07
Frequency 446.00625 446.01875 446.03125 446.04375 446.05625 446.06875 446.08125
Channel CH-08            
Frequency 446.09375            

Standard Frequency of Public Interphone in Taiwan
Channel CH-01 CH-02 CH-03 CH-04 CH-05 CH-06 CH-07
Frequency 467.5125 467.5250 467.5375 467.5500 467.5625 467.5750 467.5875
Channel CH-08 CH-09 CH-10 CH-11 CH-12 CH-13 CH-14
Frequency 467.6000 467.6125 467.6250 467.6375 467.6500 467.6625 467.6750
 

 
Leave Message
 
 
Message Has Been Sent Successfully
 

 

 
 
Cntact US
If You Want to Recommend Some Valuable Two
Way Radio to Our Website, Please Contact Us
Through Email
Radios@RadiosInfo.Com
 
Hot Topic
Digital Two Way Radio , Wouxun Company , Chinese Two Way Radio , OEM , ODM
Analogue Two Way Radio , Walkie Talkie , Public Network Two Way Radio
DMR And DPMR Two Way Radio , Waterproof Radio , 4G LTE Two Way Radio
Car Mobile Radio , Base Station , Original Design Manufacturer
Dual Bands Radio , Original Equipment Manufacturer
Newsletter
Enter Your Email And Subscribe to Some of Our
Important Content Updates
...